Fix some crashes in dartk.

tests/co19/co19-kernel.status

Index: tests/co19/co19-kernel.status
diff --git a/tests/co19/co19-kernel.status b/tests/co19/co19-kernel.status
index 55f7dcc20352aef1ab438f0e1773427e1f00570e..43fa3ad2ddf2a3699b092247263050ec63a94858 100644
--- a/tests/co19/co19-kernel.status
+++ b/tests/co19/co19-kernel.status
@@ -36,12 +36,6 @@ Language/Functions/Formal_Parameters/Optional_Formals/syntax_t14: Pass
 ###############################################################################
 
 [ $compiler == dartk || $compiler == dartkp ]
-Language/Classes/Constructors/Generative_Constructors/formal_parameter_t01: DartkCrash
-Language/Classes/Constructors/Generative_Constructors/formal_parameter_t03: DartkCrash
-Language/Classes/Constructors/Generative_Constructors/formal_parameter_t04: DartkCrash
-Language/Classes/Constructors/Generative_Constructors/formal_parameter_t05: DartkCrash
-Language/Classes/Constructors/Generative_Constructors/formal_parameter_t06: DartkCrash
-Language/Classes/Constructors/Generative_Constructors/initializing_this_t02: DartkCrash
 Language/Classes/Getters/static_getter_t02: DartkCompileTimeError
 Language/Enums/syntax_t08: MissingCompileTimeError
 Language/Enums/syntax_t09: MissingCompileTimeError
@@ -68,8 +62,6 @@ Language/Libraries_and_Scripts/Exports/syntax_t04: MissingCompileTimeError
 Language/Libraries_and_Scripts/Exports/syntax_t05: MissingCompileTimeError
 Language/Libraries_and_Scripts/Exports/syntax_t06: MissingCompileTimeError
 Language/Libraries_and_Scripts/Imports/invalid_uri_deferred_t02: DartkCompileTimeError
-Language/Libraries_and_Scripts/Scripts/top_level_main_t01: DartkCrash
-Language/Libraries_and_Scripts/Scripts/top_level_main_t02: DartkCrash
 Language/Libraries_and_Scripts/definition_syntax_t01: MissingCompileTimeError
 Language/Libraries_and_Scripts/definition_syntax_t03: MissingCompileTimeError
 Language/Libraries_and_Scripts/definition_syntax_t04: MissingCompileTimeError
@@ -91,6 +83,7 @@ Language/Libraries_and_Scripts/definition_syntax_t25: MissingCompileTimeError
 Language/Libraries_and_Scripts/definition_syntax_t26: MissingCompileTimeError
 Language/Libraries_and_Scripts/definition_syntax_t27: MissingCompileTimeError
 Language/Libraries_and_Scripts/definition_syntax_t29: MissingCompileTimeError
+Language/Libraries_and_Scripts/Scripts/top_level_main_t05: RuntimeError # 'main' getter not supported
 Language/Libraries_and_Scripts/top_level_syntax_t02: MissingCompileTimeError
 Language/Libraries_and_Scripts/top_level_syntax_t03: MissingCompileTimeError
 Language/Libraries_and_Scripts/top_level_syntax_t04: MissingCompileTimeError
@@ -198,7 +191,6 @@ Language/Libraries_and_Scripts/Imports/static_type_t01/07: Pass
 
 # dartk: JIT failures (debug)
 [ $compiler == dartk && $runtime == vm && $mode == debug ]
-Language/Libraries_and_Scripts/Scripts/top_level_main_t05: Crash  # !main_obj.IsNull()
 
 # dartk: precompilation failures
 [ $compiler == dartkp && $runtime == dart_precompiled ]
@@ -207,4 +199,3 @@ Language/Expressions/Constants/exception_t02: Crash
 
 # dartk: precompilation failures (debug)
 [ $compiler == dartkp && $runtime == dart_precompiled && $mode == debug ]
-Language/Libraries_and_Scripts/Scripts/top_level_main_t05: Crash  # !main_obj.IsNull()